Tunable "optical activity" in electrorheological fluids

Q. Zhao; X. P. Zhao

doi:10.1016/j.physleta.2004.11.035

Tunable "optical activity" in electrorheological fluids

Q. Zhao, X. P. Zhao

School of Physical Science and Technology

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The "optical activity" of adjustable periodic structure material (SiO₂ and pentaerythrital electrorheological (ER) fluids) is firstly investigated using two kinds of setup. It is found that the rotation angles can be tuned by the external electric field and weight concentrations, and the sign of the rotation angle is negative, so, the used ER fluids are defined as the left-handed optically active substances under the application of electric field. The laser diffraction patterns are also observed in the ER fluids, which indicates the formation of alignment. It is thought that the symmetry breaking of structure induced by applied electric field is the origin of the "optical activity" in the ER fluids. The electrically tunable "optical activity" will find innovative applications in displays, optical devices and other fields.

Original language	English
Pages (from-to)	376-381
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	334
Issue number	5-6
DOIs	https://doi.org/10.1016/j.physleta.2004.11.035
State	Published - 24 Jan 2005

Keywords

Diffraction pattern
ER fluids
Optical activity
Periodic structure material

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10.1016/j.physleta.2004.11.035

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abstract = "The {"}optical activity{"} of adjustable periodic structure material (SiO2 and pentaerythrital electrorheological (ER) fluids) is firstly investigated using two kinds of setup. It is found that the rotation angles can be tuned by the external electric field and weight concentrations, and the sign of the rotation angle is negative, so, the used ER fluids are defined as the left-handed optically active substances under the application of electric field. The laser diffraction patterns are also observed in the ER fluids, which indicates the formation of alignment. It is thought that the symmetry breaking of structure induced by applied electric field is the origin of the {"}optical activity{"} in the ER fluids. The electrically tunable {"}optical activity{"} will find innovative applications in displays, optical devices and other fields.",

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AU - Zhao, X. P.

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N2 - The "optical activity" of adjustable periodic structure material (SiO2 and pentaerythrital electrorheological (ER) fluids) is firstly investigated using two kinds of setup. It is found that the rotation angles can be tuned by the external electric field and weight concentrations, and the sign of the rotation angle is negative, so, the used ER fluids are defined as the left-handed optically active substances under the application of electric field. The laser diffraction patterns are also observed in the ER fluids, which indicates the formation of alignment. It is thought that the symmetry breaking of structure induced by applied electric field is the origin of the "optical activity" in the ER fluids. The electrically tunable "optical activity" will find innovative applications in displays, optical devices and other fields.

AB - The "optical activity" of adjustable periodic structure material (SiO2 and pentaerythrital electrorheological (ER) fluids) is firstly investigated using two kinds of setup. It is found that the rotation angles can be tuned by the external electric field and weight concentrations, and the sign of the rotation angle is negative, so, the used ER fluids are defined as the left-handed optically active substances under the application of electric field. The laser diffraction patterns are also observed in the ER fluids, which indicates the formation of alignment. It is thought that the symmetry breaking of structure induced by applied electric field is the origin of the "optical activity" in the ER fluids. The electrically tunable "optical activity" will find innovative applications in displays, optical devices and other fields.

KW - Diffraction pattern

KW - ER fluids

KW - Optical activity

KW - Periodic structure material

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M3 - 文章

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JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 5-6

ER -

Tunable "optical activity" in electrorheological fluids

Abstract

Keywords

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